diff --git a/coretk/coretk/dialogs/hooks.py b/coretk/coretk/dialogs/hooks.py
index 40101823..9aeebecc 100644
--- a/coretk/coretk/dialogs/hooks.py
+++ b/coretk/coretk/dialogs/hooks.py
@@ -4,7 +4,7 @@ from tkinter import ttk
 from core.api.grpc import core_pb2
 from coretk.dialogs.dialog import Dialog
 from coretk.themes import PADX, PADY
-from coretk.widgets import CodeText
+from coretk.widgets import CodeText, ListboxScroll
 
 
 class HookDialog(Dialog):
@@ -96,8 +96,9 @@ class HooksDialog(Dialog):
         self.top.columnconfigure(0, weight=1)
         self.top.rowconfigure(0, weight=1)
 
-        self.listbox = tk.Listbox(self.top)
-        self.listbox.grid(sticky="nsew", pady=PADY)
+        listbox_scroll = ListboxScroll(self.top)
+        listbox_scroll.grid(sticky="nsew", pady=PADY)
+        self.listbox = listbox_scroll.listbox
         self.listbox.bind("<<ListboxSelect>>", self.select)
         for hook_file in self.app.core.hooks:
             self.listbox.insert(tk.END, hook_file)
diff --git a/coretk/coretk/dialogs/observers.py b/coretk/coretk/dialogs/observers.py
index f496f7ef..de857b76 100644
--- a/coretk/coretk/dialogs/observers.py
+++ b/coretk/coretk/dialogs/observers.py
@@ -4,6 +4,7 @@ from tkinter import ttk
 from coretk.coreclient import Observer
 from coretk.dialogs.dialog import Dialog
 from coretk.themes import PADX, PADY
+from coretk.widgets import ListboxScroll
 
 
 class ObserverDialog(Dialog):
@@ -27,24 +28,16 @@ class ObserverDialog(Dialog):
         self.draw_apply_buttons()
 
     def draw_listbox(self):
-        frame = ttk.Frame(self.top)
-        frame.grid(sticky="nsew", pady=PADY)
-        frame.columnconfigure(0, weight=1)
-        frame.rowconfigure(0, weight=1)
-
-        scrollbar = ttk.Scrollbar(frame, orient=tk.VERTICAL)
-        scrollbar.grid(row=0, column=1, sticky="ns")
-
-        self.observers = tk.Listbox(
-            frame, selectmode=tk.SINGLE, yscrollcommand=scrollbar.set
-        )
+        listbox_scroll = ListboxScroll(self.top)
+        listbox_scroll.grid(sticky="nsew", pady=PADY)
+        listbox_scroll.columnconfigure(0, weight=1)
+        listbox_scroll.rowconfigure(0, weight=1)
+        self.observers = listbox_scroll.listbox
         self.observers.grid(row=0, column=0, sticky="nsew")
         self.observers.bind("<<ListboxSelect>>", self.handle_observer_change)
         for name in sorted(self.app.core.custom_observers):
             self.observers.insert(tk.END, name)
 
-        scrollbar.config(command=self.observers.yview)
-
     def draw_form_fields(self):
         frame = ttk.Frame(self.top)
         frame.grid(sticky="ew", pady=PADY)
diff --git a/coretk/coretk/dialogs/servers.py b/coretk/coretk/dialogs/servers.py
index ef406ecb..c380c63d 100644
--- a/coretk/coretk/dialogs/servers.py
+++ b/coretk/coretk/dialogs/servers.py
@@ -4,6 +4,7 @@ from tkinter import ttk
 from coretk.coreclient import CoreServer
 from coretk.dialogs.dialog import Dialog
 from coretk.themes import FRAME_PAD, PADX, PADY
+from coretk.widgets import ListboxScroll
 
 DEFAULT_NAME = "example"
 DEFAULT_ADDRESS = "127.0.0.1"
@@ -32,25 +33,18 @@ class ServersDialog(Dialog):
         self.draw_apply_buttons()
 
     def draw_servers(self):
-        frame = ttk.Frame(self.top)
-        frame.grid(pady=PADY, sticky="nsew")
-        frame.columnconfigure(0, weight=1)
-        frame.rowconfigure(0, weight=1)
+        listbox_scroll = ListboxScroll(self.top)
+        listbox_scroll.grid(pady=PADY, sticky="nsew")
+        listbox_scroll.columnconfigure(0, weight=1)
+        listbox_scroll.rowconfigure(0, weight=1)
 
-        scrollbar = ttk.Scrollbar(frame, orient=tk.VERTICAL)
-        scrollbar.grid(row=0, column=1, sticky="ns")
-
-        self.servers = tk.Listbox(
-            frame, selectmode=tk.SINGLE, yscrollcommand=scrollbar.set
-        )
+        self.servers = listbox_scroll.listbox
         self.servers.grid(row=0, column=0, sticky="nsew")
         self.servers.bind("<<ListboxSelect>>", self.handle_server_change)
 
         for server in self.app.core.servers:
             self.servers.insert(tk.END, server)
 
-        scrollbar.config(command=self.servers.yview)
-
     def draw_server_configuration(self):
         frame = ttk.LabelFrame(self.top, text="Server Configuration", padding=FRAME_PAD)
         frame.grid(pady=PADY, sticky="ew")
diff --git a/coretk/coretk/themes.py b/coretk/coretk/themes.py
index 43b59ffd..685a8350 100644
--- a/coretk/coretk/themes.py
+++ b/coretk/coretk/themes.py
@@ -1,5 +1,6 @@
 import logging
 import tkinter as tk
+from tkinter import ttk
 
 THEME_DARK = "black"
 PADX = (0, 5)
@@ -160,7 +161,21 @@ def update_menu(style, widget):
     if not abg:
         abg = bg
     widget.config(
-        background=bg, foreground=fg, activebackground=abg, activeforeground=fg
+        background=bg, foreground=fg, activebackground=abg, activeforeground=fg, bd=0
+    )
+
+
+def update_listbox(widget):
+    style = ttk.Style()
+    bg = style.lookup(".", "background")
+    fg = style.lookup(".", "foreground")
+    widget.config(
+        background=bg,
+        foreground=fg,
+        highlightthickness=1,
+        highlightcolor="black",
+        highlightbackground="black",
+        bd=0,
     )
 
 
diff --git a/coretk/coretk/widgets.py b/coretk/coretk/widgets.py
index 349401c5..a00b590a 100644
--- a/coretk/coretk/widgets.py
+++ b/coretk/coretk/widgets.py
@@ -5,6 +5,7 @@ from tkinter import filedialog, font, ttk
 from tkinter.scrolledtext import ScrolledText
 
 from core.api.grpc import core_pb2
+from coretk import themes
 from coretk.appconfig import ICONS_PATH
 from coretk.themes import FRAME_PAD, PADX, PADY
 
@@ -184,6 +185,7 @@ class ListboxScroll(ttk.LabelFrame):
         self.listbox = tk.Listbox(
             self, selectmode=tk.SINGLE, yscrollcommand=self.scrollbar.set
         )
+        themes.update_listbox(self.listbox)
         self.listbox.grid(row=0, column=0, sticky="nsew")
         self.scrollbar.config(command=self.listbox.yview)